Explaining The Universe on Instagram: "Magnetism is a physical force caused by the motion of electric charges, especially the spin and movement of electrons within atoms. It gives rise to magnetic fields, which can attract or repel certain materials like iron, nickel, and cobalt. On a larger scale, Earth itself acts like a giant magnet, with a magnetic field that protects us from harmful solar radiation. Magnetism is essential in many technologies, from compasses and motors to data storage and M